Addition to Annelida 11/28/06

The thing to remember about the earthworm dissection is that it is Class Oligochaeta. Also, try to remember the structures in order as they go down the length of the worm.

2 pairs of nephridia (excretion) can be found per segment.

11-16-06 Frog Dissection

Nostrils, Eyes (Shut) and Tympanic membrane on each side (for hearing)



Better view of the nostrils...



Tongue and Eustachian tubes



Eustachian tube



Glottis



Internal nares



Maxillary teeth



Esophagus



Gluteus



Triceps femoris



Semimembranosus



Gastrocnemius



Peroneus



Ileofibularis



Achilles tendon



gracilis major


Triceps femoris



Sartorius



?



Gastrocnemius



Rectus abdominis



Pectoralis



Mylohyoid



Heart



Liver



Stomach



Gall bladder



Small intestine



Large Intestine



Mesentery (membrane)



Spleen



?




Large Intestine


Fat body



leafy stuff beindgheld up is ovary



kidney



Urinary Bladder



Oviduct




Frog is Phylum Chordata, Subphylum Vertebrata, Class Amphibia

11-16-06 Slides

This looks like the fish blood. The way that you can tell the difference between the fish and human blood is that the fish blood has a nucleus, and the human blood does not.



which makes this human blood



sickle cell anemia. Caused by one wrong amino acid on one of the Beta chains of the hemoglobin. Easy to identify because some of the blood cells are sickle shaped.



teased smooth muscle.
One nucleus. Long, thin, tapered.



striated



looks like cardiac muscle



motor neurons



cartilage. You can see the chondrocytes in the matrix (made up of collagen and proteins)



Bone. The spiral things are Haversian systems (Osteon). The center is the Haversian canal. Layers= lamellae. Layers are connected by canalicuti



columnar epithelial



cuboidal epithelial



stratified epithelial (skin)








cuboidal




columnar



columnar



stratified